Articles | Volume 9, issue 2
Original research article
15 Sep 2023
Original research article |  | 15 Sep 2023

Organic and inorganic nitrogen amendments reduce biodegradation of biodegradable plastic mulch films

Sreejata Bandopadhyay, Marie English, Marife B. Anunciado, Mallari Starrett, Jialin Hu, José E. Liquet y González, Douglas G. Hayes, Sean M. Schaeffer, and Jennifer M. DeBruyn

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Cited articles

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Ajwa, H. A. and Tabatabai, M. A.: Decomposition of different organic materials in soils, Biol. Fert. Soil., 18, 175–182,, 1994. 
Anunciado, M. B., Hayes, D. G., Astner, A. F., Wadsworth, L. C., Cowan-Banker, C. D., Gonzalez, J. E. L. y., and DeBruyn, J. M.: Effect of environmental weathering on biodegradation of biodegradable plastic mulch films under ambient soil and composting conditions, J. Polym. Environ., 29, 2916–2931,, 2021. 
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Short summary
We added organic and inorganic nitrogen amendments to two soil types in a laboratory incubation study in order to understand how that would impact biodegradable plastic mulch (BDM) decomposition. We found that nitrogen amendments, particularly urea and inorganic nitrogen, suppressed BDM degradation in both soil types. However, we found limited impact of BDM addition on soil nitrification, suggesting that overall microbial processes were not compromised due to the addition of BDMs.